JFOYH 4-Pistons E-Bike Hydraulic Disc Brakes Set for Elecric Bike with Power-Off Sensor, Ebike Hydraulic Brake Upgrade kit with 2-PIN Power-Off Sensor Male Connector(No Rotors)

Features

• Designed for E-Bikes: The M4S hydraulic brake system features a built-in automatic power-off sensor and a 2-pin male connector. When the sensor detects braking, it immediately cuts off the motor's power, ensuring a fast and safe stopping experience. This power-off function improves control, safety, and overall riding responsiveness.
• 4 Pistons for Powerful Braking: The M4S hydraulic brake system features 4 pistons, delivering 50% more braking power compared to 2-piston systems like the MT200. This enhanced braking force ensures easier and safer stops, providing superior control and confidence during your ride.
• Check Hose Length Before Purchase: Ensure the brake hose length meets your needs before buying. The front brake hose measures 950mm (37.4 inches) and the rear brake hose is 1850mm (72.8 inches). Incorrect hose length may prevent installation.
• Compatibility:① The caliper is designed for installation on the left side of the wheel.② The original brake lever's power-off sensing cable must have a 2-pin male connector.③ Compatible with 1.85mm thick rotors and 160mm, 180mm, or 203mm rotors (sold separately).
• Installation Guide: The M4S brake system features a split design, with the brake lever and hose separated for easier internal frame routing. Pre-bled with mineral oil, it’s essential to prevent oil leakage and air from entering the system during installation. Please carefully watch the installation video tutorial before beginning.